Explain the mass of potassium chlorate that decomposed

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A mass of solid potassium chlorate undergoes thermal decomposition in the presence of a catalyst (manganese dioxide) to produce solid potassium chloride and oxygen gas. As a result, 250mL of oxygen are collected over water at 26.0 degrees C and a total pressure of 760.0 Torr. What is the mass of potassium chlorate that decomposed?

Reference no: EM13311349

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